Climate and monthly weather forecastHemel Hempstead, United Kingdom
Climate and monthly weather forecast
Weather in January
January, the same as December, in Hemel Hempstead, United Kingdom, is another chilly winter month, with an average temperature varying between 1.6°C (34.9°F) and 6.4°C (43.5°F). January, recording an average high temperature of 6.4°C (43.5°F) and a low temperature of 1.6°C (34.9°F), is Hemel Hempstead's coldest month. Weather in January »Weather in February
The last month of the winter, February, is another chilly month in Hemel Hempstead, United Kingdom, with an average temperature ranging between min 2.1°C (35.8°F) and max 7.2°C (45°F). February brings an average high-temperature of a still chilly 7.2°C (45°F), nearly identical to the preceding month. Weather in February »Weather in March
March, the first month of the spring in Hemel Hempstead, is a cool month, with temperature in the range of an average high of 10.2°C (50.4°F) and an average low of 2.8°C (37°F). The shift into March finds Hemel Hempstead at an average high-temperature of a fresh 10.2°C (50.4°F), closely comparable to February's conditions. Weather in March »Weather in April
April is a mild spring month in Hemel Hempstead, United Kingdom, with an average temperature ranging between min 4.8°C (40.6°F) and max 13.8°C (56.8°F). As Hemel Hempstead welcomes April, the average high-temperature sees a modest rise, transitioning from a cool 10.2°C (50.4°F) in March to a refreshing 13.8°C (56.8°F). Weather in April »Weather in May
May, the last month of the spring in Hemel Hempstead, is an enjoyable month, with temperature in the range of an average high of 16.1°C (61°F) and an average low of 7.3°C (45.1°F). Hemel Hempstead's weather, upon May's arrival, documents an average high-temperature of an enjoyable 16.1°C (61°F), nearly identical to the prior month. Weather in May »Weather in June
June, the first month of the summer in Hemel Hempstead, is still a comfortable month, with an average temperature fluctuating between 19°C (66.2°F) and 10.3°C (50.5°F). June's advent presents an average high-temperature of a still comfortable 19°C (66.2°F), indicating a slight variation from the conditions of the previous month. Weather in June »Weather in July
July in Hemel Hempstead, United Kingdom, is an agreeable summer month, with temperature in the range of an average low of 12.7°C (54.9°F) and an average high of 21.6°C (70.9°F). July stands out as Hemel Hempstead's warmest month, with an average high-temperature of 21.6°C (70.9°F) and a low-temperature of 12.7°C (54.9°F). Weather in July »Weather in August
The last month of the summer, August, is also an agreeable month in Hemel Hempstead, United Kingdom, with an average temperature fluctuating between 13.3°C (55.9°F) and 21.2°C (70.2°F). In August, Hemel Hempstead experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 21.6°C (70.9°F) in July to a still pleasant 21.2°C (70.2°F). Weather in August »Weather in September
September, the first month of the autumn in Hemel Hempstead, is also an enjoyable month, with an average temperature varying between 10.8°C (51.4°F) and 18.5°C (65.3°F). September's arrival brings an average high-temperature of a refreshing 18.5°C (65.3°F), demonstrating subtle variation from the preceding month. Weather in September »Weather in October
October, like September, is a moderate autumn month in Hemel Hempstead, United Kingdom, with temperature in the range of an average low of 8.6°C (47.5°F) and an average high of 14.5°C (58.1°F). The shift from September to October coincides with a small decrease in the average high-temperature, down to a moderate 14.5°C (58.1°F) from a refreshing 18.5°C (65.3°F). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Hemel Hempstead, United Kingdom, with an average temperature fluctuating between 5.4°C (41.7°F) and 9.9°C (49.8°F). The average high-temperature shows a slight dip in November, from October's mild 14.5°C (58.1°F) to a frosty 9.9°C (49.8°F). Weather in November »Weather in December
December, the first month of the winter in Hemel Hempstead, is also a frosty month, with an average temperature varying between 7.3°C (45.1°F) and 2.9°C (37.2°F). Hemel Hempstead transitions into December recording an average high-temperature of a still frosty 7.3°C (45.1°F), closely aligning with the preceding month's temperature. Weather in December »Updated: Feb 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Hemel Hempstead, United Kingdom, witnesses the coldest weather in January, with temperatures averaging a high of 6.4°C (43.5°F) and a low of 1.6°C (34.9°F).
In Hemel Hempstead, United Kingdom, during the entire year, the rain falls for 159.2 days and collects up to 359mm (14.13") of precipitation.
Months with snowfall in Hemel Hempstead are January through March, November and December.
Throughout the year, in Hemel Hempstead, United Kingdom, there are 10.1 snowfall days, and 59mm (2.32") of snow is accumulated.
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hemel Hempstead, United Kingdom.
February has the least sunshine of the year in Hemel Hempstead, United Kingdom, with an average of 3.7h of sunshine.
April through October are months without snowfall.
June is the month with the most rainfall in Hemel Hempstead, United Kingdom. Rain falls for 15.8 days and accumulates 44mm (1.73") of precipitation.
The month with the longest days in Hemel Hempstead is June, with an average of 16h and 36min of daylight.
The months with the highest UV index in Hemel Hempstead, United Kingdom, are June and July, with an average maximum UV index of 5.
In Hemel Hempstead, July is identified by the average highest temperatures, reaching a peak of 21.6°C (70.9°F) and a low of 12.7°C (54.9°F).
The months with the most sunshine in Hemel Hempstead, United Kingdom, are July and August, with an average of 8h of sunshine.
With an average relative humidity of 76%, August is the least humid month in Hemel Hempstead.
September is the month with the least rainfall. Rain falls for 10.7 days and accumulates 19mm (0.75") of precipitation.
On Sunday, 27. October 2024, at 2:00 am, Daylight Saving Time ends, and the time zone changes from BST to GMT. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 1:00 am, and the time zone reverts from GMT to BST.
December is the most humid month in Hemel Hempstead, with an average relative humidity of 90%.
The month with the most snowfall in Hemel Hempstead is December, when snow falls for 2 days and typically aggregates up to 20mm (0.79") of snow.
December has the shortest days of the year in Hemel Hempstead, with an average of 7h and 54min of daylight.
Average temperature
Hemel Hempstead, United Kingdom
The warmest month (with the highest average high temperature) is July (21.6°C).
The month with the lowest average high temperature is January (6.4°C).
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure
Hemel Hempstead, United Kingdom
- Average pressure in January:
1014.3mbar - Average pressure in February:
1013.6mbar - Average pressure in March:
1015.4mbar - Average pressure in April:
1015.6mbar - Average pressure in May:
1016.7mbar - Average pressure in June:
1016.1mbar
- Average pressure in July:
1015.2mbar - Average pressure in August:
1014.7mbar - Average pressure in September:
1016.8mbar - Average pressure in October:
1015mbar - Average pressure in November:
1010.4mbar - Average pressure in December:
1014.2mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.4mbar).
Average wind speed
Hemel Hempstead, United Kingdom
- Average wind speed in January:
17.4km/h - Average wind speed in February:
18.2km/h - Average wind speed in March:
16.5km/h - Average wind speed in April:
13.8km/h - Average wind speed in May:
13.7km/h - Average wind speed in June:
13.2km/h
- Average wind speed in July:
12.9km/h - Average wind speed in August:
13.3km/h - Average wind speed in September:
13.1km/h - Average wind speed in October:
15.2km/h - Average wind speed in November:
16.4km/h - Average wind speed in December:
18km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity
Hemel Hempstead, United Kingdom
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (76%).
Average rainfall
Hemel Hempstead, United Kingdom
The wettest month (with the highest rainfall) is June (44mm).
The driest month (with the least rainfall) is September (19mm).
Average rainfall days
Hemel Hempstead, United Kingdom
- Average rainfall days in January:
12 days - Average rainfall days in February:
11.7 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
14.3 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
14.4 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
11.6 days - Average rainfall days in November:
12.5 days - Average rainfall days in December:
12.3 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is September (10.7 days).
Average snowfall
Hemel Hempstead, United Kingdom
The month with the highest snowfall is December (20mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days
Hemel Hempstead, United Kingdom
- Average snowfall days in January:
2.9 days - Average snowfall days in February:
3.5 days - Average snowfall days in March:
1.1 days - Average snowfall days in April:
0.3 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Hemel Hempstead, United Kingdom
- Average daylight in January:
8h and 24min - Average daylight in February:
10h and 0min - Average daylight in March:
11h and 54min - Average daylight in April:
13h and 54min - Average daylight in May:
15h and 42min - Average daylight in June:
16h and 36min
- Average daylight in July:
16h and 6min - Average daylight in August:
14h and 36min - Average daylight in September:
12h and 36min - Average daylight in October:
10h and 42min - Average daylight in November:
8h and 54min - Average daylight in December:
7h and 54min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
3h and 42min - Average sunshine in March:
5h and 36min - Average sunshine in April:
7h and 42min - Average sunshine in May:
7h and 24min - Average sunshine in June:
7h and 24min
- Average sunshine in July:
8h and 0min - Average sunshine in August:
8h and 0min - Average sunshine in September:
7h and 12min - Average sunshine in October:
4h and 36min - Average sunshine in November:
4h and 6min - Average sunshine in December:
4h and 24min
The months with the most sunshine are July and August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days
Hemel Hempstead, United Kingdom
- Average sunshine days in January:
14.8 days - Average sunshine days in February:
12.7 days - Average sunshine days in March:
14.5 days - Average sunshine days in April:
12.2 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
11 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
16.2 days - Average sunshine days in November:
14.5 days - Average sunshine days in December:
15.4 days
The month with the most sunshine days is September (17.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Hemel Hempstead, United Kingdom
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Hemel Hempstead, United Kingdom
The months with the most cloud cover are February and November (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility
Hemel Hempstead, United Kingdom
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
